Skiving machine



July 27, 192.7.

w. CARD, JR 2,088,051

SKIVING MACHINE Filed OCt. 19, 1954 3 Sheets-Sheet 1 IIIHIIi ll Ml ATTORNEYS Julyy 27, 1937,

' W. C. CARD. JR

SKIVING MACHINE Filed Oct. 19, 1954 Hmmm s sheets-sheet 2 INVENTOR BY E ATTORNEYS i W. C. CARD. JR

sKIvING MACHINE July 27, 1937.

Filed Oct. 19, 1954 3 SheetSSheet 5 wmf INVENTOR dmc. BY

TTORNEYS Patented July A27, 1937 SKIVIN'GMACHIE" William C. Card, Jr., Winthrop, Mass., assignor to Compo Shoe Machinery Corporation, New i York, N. Y., a corporation of Delaware i Application october 19, 1934, seriai No. 748,979 19 claims.` (c1. 12-17)l y Fig. 3 is a fragmentarysectional detailed view This invention relates to the /fshoe manufacturing art, and more particularly toa skiving machine for making complementary insoles'and outsoles of the type shown in Sbicca Patent No.

A general object of the invention is to provide a machine which is capable of separating a piece of rounded sole stock into an insole` having a perforate forepartand an outsole having a mating landedportion opposite such insole perforation, wherein theseparation is effected in a single skiving or splitting operation.

More particularly, the invention has for obvjects the provision of a skiving or splitting machine having a splitting knife cooperating with die and matrix rollers suitably shaped to form complementary insoles and outsoles of a desired configuration, wherein Athere is provided means for positioning and. feeding leather stock with reference to said rollers to assure proper registry of the work therewith.

Further objects of the invention are to provide a machine lof this type which is largely autof matic in its operation, is easy to operate with a minimum of effort and skill on the part of the operator, is rugged, and vis capable of rapidly, efficiently and accurately forming complementary insoles and outsoles of the required type.

A further object of the invention is to provide a positioning mechanism for rounded sole blanks and the like which is adapted to present such blank in properl cooperative registry with an operating means designed to ,treat predeterminedly located portions thereof.

' Other objects of the invention will in part be obvious and will in part appear hereinafter.

The invention accordingly comprisesv the features of construction, combination of elements, and arrangement of parts, which will be exemplifled in the ,construction hereinafter set forth and the scope of theapplication `of which will be indicatedin the claims.

For a fuller understanding of the nature and objects ofthe invention referenceshould be had' to the following detailed description taken in connection lwith the `accompanying drawings, in which:`

Fig. 1 is a vertical sectional view of a sole splitting machine embodying principles of the present invention, taken substantially along line I--I of Fig. 2;

Fig. 2 is a fragmentary plan view showing approximately one-halfof the machine of Fig. 1, parts thereof being broken away or shown in section better to illustrate the construction;

v sole; and f ards I5 andIIi joined at l pressure rollers-used in the present machine;

Fig. 4 is a vertical sectional view taken ,sub stantially along line 4-4 of Fig. 1;

Fig. 5 is a vertical sectional View taken stantially along line 5-5 of Fig..1; y

Fig. 6 is a plan View of `an insole produced dur.- ingvoperation of the present machine; f

Fig. 7 is a plan View of va similarly formed out- Fig. 8 is a fragmentary perspective View Von an` enlarged scale showing details of a side gage construction. v

The above mentioned SbiccaPatentNo. 1,902; 725 shows a complementary insole. and outsole unit which is adapted to be cut from a single piece of sole leather stock yhaving the combined thickness of the insoleand outsole. purpose of the r present invention to provide a machine capable of forming such insole and outsole combinations ina single splitting 4operation. The products of the present machine, for example, are shown in Figs. 6 and `'7. They comprise an outsole Ill having a raised land II at its central forepart portion, together with an insole I2 which is split off from such outsole and has its central forepart portion centrally perforatey as at I3 so as lto correspond and intert with the Referring to the drawings, the f machine ,for providing such sole parts comprises a base III,l at the opposite sides of which are uprightstandf rigidifying strut I 'I.

side of base I4, 4longitudinal `adjustment thereof being provided by means vof adjustment screws their upper ,ends by a l, ;.lf'35" A splitting knife rI8 is mountedon the upper It is the` I9 which are y,workablein,conjunction withlits,

slotted mounting lat 20.

An upper pressure` roll and a ylower.pressure roll 22 are provided for passing'work stock tothe knife I8 in positionto .be split thereby. The, upper pressure roll is mounted on and fixed for rotation with a vshaft 23- (Fig. \5) theends. of

which are rotatable inslidable. journals v24,a nd

25. `The upper sides of these journals are each provided with a dovetail inclined wedge slot 26l with which a pair of similar block s 21 are adapt.-` .fr

ed to cooperate to vary the vertical positionof`` the upper roll 2I withreference to the knife` I8.

Each block 21 has aiiixed to its inclined under side a wedge block 28 which is` wider than block 2l so as to fit in dovetail fashion in 'correspondf ing slot 26, whereby lateral movement of block 21 will eiect vertical movement of the journals 24 and 25, these latter being slidably mounted in suitable guideways on their respective standards (Fig. 2). Lateral movement is imparted to blocks 21 by means of a rod 29 which is freely rotatable in a journal 36 axed to the machine frame. This rod has threaded portions 3I and 32 which work respectively in threaded openings in blocks 21. Rod 29 is adapted to be rotated by a hand wheel 33, turning of which effects lateral movement of the wedge blocks and vertical movement of the roller journals. The extent of this movement is indicated by some suitable mechanism, such as a pointer 34, which is rotatably journaled in a casting 35 affixed to the strut I1, and has a link 36 extending between its lower end and an integral projection 31 on one of the wedge blocks 21. 'Ihis pointer is adapted to play over a scale suitably calibrated to indicate the number of irons thickness between the edge of knife I8 and the underside of the upper roll 2|.

The lower pressure roll 22 is xed for rotation with a drive shaft 38, the ends of which are rotatable in journals 39 and 40 which are guided and vertically slidable in standards I and I6 respectively. Compression springs 4I act normally to urge standards 39 and 40 upwardly so that roll 22 tends to approach roll 2 I. Intermeshing gears 42 and 43 are respectively movable with shafts 23 and 38 and provide for related driving movement of the pressure rolls.

Shaft 38 is driven by any suitable power mechanism through the medium of a one-revolution clutch generally indicated at 44. This clutch may have any suitable or conventional construction.

'I'he end pressure roll 22 is provided with a. pair of laterally placed dies such as 45 which are removably and replaceably affixed by means of screws. The upper pressure roll 2| has a detachable section 46 screwed thereto, in which are located matrices 41 corresponding to and located in opposed registry with dies 45. Each die 45 and its corresponding matrix 46 are suitably congured so as to flex the sole stock located in the outsole land area II up out of the way of the splitting knife I8 during passage of the sole stock between the rolls, as' is shown in Fig. 3. One die and matrix is designed to treat right sole units and the other is configured for left sole units, it being intended that a pair of sole combinations may be worked upon during each operation of the machine. Dies and matrices of different sizes and configurations may be used when wanted by virtue of their removable mountings on the pressure rolls.

The work stock that is to be presented to the above described flexing and splitting mechanism comprises a previously rounded blank of sole leather stock having the combined thickness of the ultimately formed insole and outsole.

Means are provided for positioning such rounded sole stock in proper registry with respect to the die and matrix on the pressure rolls so that the land II and perforation I3 will be formed in the proper part of their respective soles as the stock is passed through the machine. This positioning means is associated with a work holding table 48 which' is xed to and extends from casting I4 toward the operator, who stands facing the machine as the latter is viewed in Fig. 4. An end gage 49 is slidably mounted on table 48 for longitudinal adjustment with respect thereto, such adv justment being effected by means of a rack 50 and pinion 5I, which latter is controlled by a suitably calibrated hand wheel 52. The longi-` tudinal position of the sole stock with reference to the die and matrix is determined by abutting its toe end against this end gage. One gage 49, with its appurtenant parts, is provided at each side of the machine for the respective right and left soles. The lateral position of the sole stock is controlled by means of side gages 53 and 54 which are respectively mounted on bent arms 55 and 56, which are pivoted at their lower ends to a strap 51, forming a fixed part of the machine frame. Each arm 55 is meshed with its corresponding arm 56 by means of suitable gears 58, and a spring 56 reacts between each arm 55 and an adjoining portion of the machine frame so as to give the gages 53 and 54 a normal bias toward each other in a centered position. Work stock held against gage 49 is automatically laterally centered with reference to the die and matrix by the described centering side gage construction.

Means are provided for facilitating the insertion of work in the several described gages and also for holding it in position, once it has been located, against slippage with reference to the die and matrix during its movement through the machine. Such means includes a pair of opposed preliminary gripping or feed rollers, comprising an upper roller 60 and a lower roller 6 I which are adapted to clamp down upon the work and grip it between them when it has been positioned by means of gages 49, 53 and 54. The upper roller 60 has its ends journaled in arms 62 and 63 which are mounted for oscillatory movement on upper roll shaft 23. A spring 64 which is anchored to pin 65 on the main frame (Fig. 4) pulls arm 63 downwardly, thus giving roller 6|] a normal bias toward roller 6I. The latter roller is similarly mounted on arms such as 66 (Figs. 1 and 2), which are oscillatably mounted on lower roll shaft 38. A spring 61 reacts between arm 66 and a bridge casting 68 forming part of the base I4, such spring permitting yielding movement of arm 66 downwardly when needed. A support or table section 69 (Figs. 1 and 2) spans arms 66 and affords a support for the work as it passes from rollers 60 and 6I to the main pressure rolls.

The upper roller 60 is connected for feeding movement with upper roll 2| by means of a gear on shaft 23 which meshes with an idler 1I mounted on arm 62, which in turn meshes with a gear 12 which. is movable with roller 60. The position of gears 1I and 12 have been indicated by dotted lines in Fig. l, although actually they are mounted on arm 62 as is best shown in Fig. 4. A similar gear train, comprising a driving gear 13, an idler 14 and a driven gear 15, serves to rotate the lower preliminary roller 6I. 'I'he several gears are so arranged that the peripheral or surface speeds of upper roller 60 and upper roll 2I are the same, and this is also the case with lower roller 6I and lower roll 22, so that work is adapted to be positively fed between the rollers and rolls in an even manner without any tendency to buckle or drag.

The upper roller 60 is adapted to be separated or spaced from lower roller 6I during insertion of the work in the positioning gages. The means for doing this comprises a pin 16 (Figs. 1 and 8) which extends downwardly from arm 63 and rides on the surface of a earn 11 which is fixedly mounted on a transverse shaft 18. This shaft has an operating handle 19 whereby it is adapted to be oscillated through approximately a one-quar- CII As the work advances between the pressure rolls it is split by knife |8, and the upperLportions of of roller 60 upon roller 6| While retracting side gages 53 and 54 from the work so as to permit its passage therebetween without interference therefrom yonce the proper position of registry has been determined. The structure for effecting this includes an additional cam 88, xed on shaft 18,-which has a high portion 8| (Figs. 1 and 8) which, when handle 19 is in. upright position, is adapted to ride over and depress the inner end 82 of a U-shaped plunger 83, which is mounted A for vertical sliding movement between strap 51 and bridge 68. The plunger may be laterally confined for vertical movement only in any suitable manner, as, for example, by a pair of vertical confining ribs spaced on either side thereof, and located on the bridge 68, one of suchbeing shown at 68 in Fig. 1. The outer arm of this plunger terminates at 84 and intermediate its length this arm carries a fixed collar 85 which overhangs the ends of levers 86 (Figs. 4 and 8) which extend from the respective side gage arms 55. It will be seen that depression of plunger 83 will cause collar 85 to engage levers 86 and effect retraction or spreading movement of the side gages 53 and 54. Thus, as the cam projection 8| rests upon the plunger at 82, there is suflicient. depression of such plunger to effect enough retraction of gages 53 and 54 to facilitate insertion of the heel end of the sole blank therebetween. While cam projection 8| is in this gage retra'cting position, 'a high portion of cam 11 underlies pin 16 so that the rollersv 60 and 6| are separated. Upon slight 'further rotation of shaft 18 in a clockwise direc- Ition (Fig. 1), the, cam projection 8| leaves the inner end of plunger 83 and permits springs 5,9 to actuate the side gages which mutually approach and grasp the sole blank 'adjacent its shank portion so as to center it with reference to the end gage 48 and with reference to the die and matrix on Athe pressure rolls. Still further clockwise rotation of shaft 18 eventually brings the lowermost portion of cam 11 beneath pin 16, as shownin Fig. 8, thus permitting roll 68 to descend upon the work and in conjunction with roller 6|, to grip the workand hold it in its adjusted position. -At the same time a finger 81 on cam 80 abuts and depresses the outer end 84 of the plunger 83, and this depression of the plunger again serves widely to retract side gages 53 and 54 so that the wider forepart portion of the sole may pass therebetween without interference therefrom. At this stage the handle 19 is in approximately horizontal positionr Tand vthe kwork is xedly clamped between rollers 60 and 6| with its toe' end against gage48 andwith side gages 53 and 54 drawn well out ofits path; 'f

The work is thenv ready for movement through the machine', this being effected by throwing thev one-revolution` :clutch: into driving connection with roll shaft' v38.*.;"1hrcugh their associated gearing, rotation offsuch'froll effects driving and feeding rctationof v'upper roll2| and of the fprel liminary rollers 60 and 6| `which beginto advance the worktowardfand-between the pressure rolls.

comprising a. splittingl k' `nife;

its forepart are ilexedby the die and matrix structure so as to form the desired landed and perforated portions ontheoutsole and insole.

Fig. 1,. the operator sees thatv handle 19 is 'in 10 upright position, at which time `the preliminary rollerswill be spaced andthe side gages will be slightly retracted. The operator-then slips the heel end of bothA tlfei'right' aridleft blank between the rollers 60 and 6| and between their appropriate side gages 53 and 54'until their toe ends abut their respective end gages 49. Thelever '19 is then pulled toward theoperatorand during rotation of shaft 18 theside gages automatically center the two soles, suchgages being later re tracted through the operation of` cam finger 81 as the preliminary gripping rollers 68 and 6| clamp the work to hold it in its adjusted position. Upon power being applied to the pressure rolls for a single revolution thereof, the soles are fed entirely through the machine and split in the required manner in a single splitting operation.

It will be seen that there has been provided a machine which is well suited to fulll its intended functions. Since certain changes maybe made in the above construction and different embodiments of the invention could be made without departing from the scope thereof, it is intended that all mattercontained in the above description or shown in the accompanying drawings shallbe interpreted as illustrative and not in a limiting sense. f It is also to be understood that the following claims are intended to cover all of the generic and specific features of the invention herein described, and all statements of the scope of the invention which, as a matter of language, might be said to fall therebetween.

Having described my invention, what I claim as new and desire to secure by Letters Patent is:

ing means for engaging said stockt@ present it to said rolls in proper/fregistry with said die and matrix, clamping means engageable with said stock to maintain-said registryduring' feeding movementlof the stock, 'connections between said positioning meansandlvrsaid clamping meansffor spacing the latter whilefthe'lfformer operates' and for retracting theel-positioning "means whilethe clamping vmeans Ioperates, and lmeansV `for driving said rollers.

2. A splitting rniachine-ffor' 4roundedfsole `stock comprising a splitting knife, lopposed lrolls rfor passing said stockfto said v lq:' `nife`,* al die on one of said rolls and af `rnatrix`^on--` the other, fa work support associated 'withe-`saiti" `frplls,` positioning means for locating said stock on;l said workv support in position tofre'gis'teri-with said" die *and matrix, means-for3 clampingsaid stock in" its registered position and ffo'r advancing itto'said rolls, and driving'fmean's'fo'r said rolls. r'

3. A splitting machinevforflrounded sole stock opposed -rollsv for itr passing said stock to said knife, a die on one of said rolls and a matrix on the other, a work support associated with said rolls, positioning means for locating said stock in proper registry with said die and matrix including an end gage fixed on said support and side gages movable into engagement with the opposite sides of the stock, clamping means engageable with said stock to maintain said registry during movement of said stock toward said rolls, means for retracting said side gages from engagement with said stock during such movement, and driving means for said rolls.

4. A splitting machine for rounded sole stock comprising a splitting knife, opposed rolls for passing said stock to said knife, a die on one of said rolls and a matrix on the other, a work support associated with said rolls, an end gage on said support for determining the longitudinal position of said stock with respect to said rolls, spring biased movable side gages for positioning said stock laterally with respectto said rolls, clamping means engageable with said stock to maintain said registry during movement of said stock toward said rolls, means associated with said clamping means for retracting said side gages \While said clamping means holds said stock, and driving means for said rolls.

5. A splitting machine for rounded sole stock comprising a splitting knife, opposed rolls for passing said stock to said knife, a die on one of said rolls and a matrix on the other, positioning means/for locating said stock in proper registry cwith said die and matrix, opposed' preliminary rollers for gripping `said stock when it is positioned, and driving means for said rolls.

6. A splitting machine for rounded sole stock comprising a splitting knife, opposed rolls for passing said stock to said knife, a die on one of said rolls and a matrix on the other, positioning means for locating said stock in proper registry with said die and matrix, opposed preliminary rollers adapted to grip said stock when it is positioned', means separating said rollers while said stock is being positioned, and driving means for said rollers.

7. A splitting machine for rounded sole stock comprising a splitting knife, opposed rolls for passing said stock to said knife, a die on one of said rolls and a matrix on the other, positioning means for locating said stock in proper registry with said die and matrix, opposed preliminary rollers adapted to grip said stock when it is positioned, and means for driving said rolls and rollers.

8. A splitting machine for rounded sole stock comprising a splitting knife, opposed rolls for passing said stock to said knife, a die on one of said rolls and a matrix on the other, positioning means for locating said 4stock in proper registry with said die and matrix, opposed preliminary rollers adapted to grip said stock when it is positioned, and means for driving said rolls and rollers at substantially the same surface speed.

9. A splitting machine for rounded sole stock comprising a splitting knife, opposed rolls for passingfsaid stock to said knife, a die on one of said rolls and a matrix on the other, positioning means for locating said stock in proper registry with said die and matrix, opposed preliminary rollers adapted to grip said stock when it is positioned, gearing between one of said rolls and the corresponding roller for moving them in the same direction at substantially the same surface speed, and means for driving said roll.

10. A splitting machine for rounded sole stock comprising a splitting knife, upper and lower rolls for passing said stock to said knife, a die on one of said rolls and a matrix on the other, positioning means for locating said stock in proper registry with said die and matrix, upper and lower preliminary rollers adapted to grip said vstock when it is positioned, gearing between said upper roll and roller, gearing between said lower roll and roller, said 'gearing being arranged to drive the corresponding rolls and rollers in the same direction at substantially the same surface speed, and means for driving said rolls.

11. A splitting machine for rounded sole stock comprising a splitting knife, opposed rolls for passing said stock to said knife, a die on one of said rolls and a matrix on the other, positioning comprising a splitting knife, opposed rolls for passing said stock to said knife, a die on one of said rolls and a matrix on the other,positioning means including retractable side gages for locating said stock in proper registry with said die and matrix, opposed preliminary rollers, spring means urging said rollers into gripping relation with said stock when it is positioned, means for retracting said side gages when said rollers grip thestock, and means for driving said rolls.

' 13. A splitting machine for rounded sole stock comprising a splitting knife, opposed rolls` for passing said stock to said knife, a die on one of said rolls and a matrix on the other, positioning meansl including retractable side gages for 1ocating said stock in proper registry with said die an'd matrix, opposed preliminary rollers, spring means normally urging said rollers toward each other, means for spacing said rollers while said stock is being positioned, said spacing means being movable to permit said rollers to grip said stock when it is positioned, means for retracting said side gages when said rollers grip the stock, and means for driving said rolls.

14. A splitting machine for rounded sole stock comprising a splitting knife, opposed yrolls for passing said stock to said knife, a die on one of said rolls and a matrix on the other, positioning means including opposed side gages spring biased toward each other for locating said stock in proper registry with said die and matrix, opposed preliminary rollers spring biased toward each other, means for spacing said rollers and re, tracting said side gages to permit insertion of said stock therebetween, said means being movable to permit engagement of said side gages with the stock while holding said rollers spaced, and being further movable to permit said rollers to grip said stock and again to retract said side gages, and means for driving said rolls.

15. A splitting machine for rounded sole stockl retraction thereof, a cam shaft having cam means thereon associated with said rollers and said plunger, said cam means being arranged during rotation of said cam shaft first to space said rollers and retract said side gages, then to permit relative approachI of said side gages.while holding said rollers spaced, and then to permit relative approach of said rollers while retracting said gages, and means for driving said rolls.

16. In a device for operating on a predetermined area of a rounded blank of sole stock, operating means, and positioning means for said stock including an end gage, pivotally mounted side gages interconnected for mutual approach and retraction, means for clamping the work in adjusted position and for feeding it to said operating means, and means for spacing said clamping means to permit insertion of the work in said positioning means.

17. In a device for operating on a predetermined area of a rounded blank of sole stock, op-

erating means, and positioning means for said stock including pivotally mounted side gages interconnected for mutual approach and retraction, means for clamping the work in adjusted position, and connections between said clamping means and side gages adapted to retract said gages to permit passage of said stock therebetween when said clamp is operative.

18. In a device for operating on a predetermined area of a rounded blank of sole stock, operating means, a work support adjacent said operating means, positioning means for registering said stock with respect to said operating means including, movable side gages for engaging work on said support, said side gages being interconnected for relative approach and retraction, spring means tending normally to center said side gages, clamping means for maintaining said blank in such registry, and cam means associated with said side gages and clamping means, said ,cam means being adapted in one position to retract said side gages and space said clamping means to facilitate insertion of Work therebetween, and in another position to permit said side gages to engage and center such work.

19. In a device for operating on a predetermined area of a rounded blank 'of sole stock, operating means, a work support adjacent said operating means, an end gage on said Work support, movable side gages for engaging work on said support, said side gages being interconnected for relative approach and retraction, spring means tending normally to center said side gages,

and cam operated means associated with said side gages, said cam operated means being adapted in one position to retract said side gages to facilitate insertion of work therebetween, in another position to permit said side gages to engage and center such work, and in another position to retract said gages sufficiently to permit longitudinal movement of the work therebetween.

WILLIAM C. CARD, JR. 

